Venom's Thicketgrowth

Often used in conjunction with Venom's brambletangle, Venom's thicketgrowth is favored by several of Cormanthor 's green dragons as a means of constructing extensive lairs amidst the forest's vegetation. It is a dragon-only spell.

By means of this spell, the spellcaster causes the dominant vegetation within a 90-cubic-foot region to spread to an adjacent region of similar volume. While preexisting vegetation is not directly killed by means of this spell, the propagated species typically overwhelms its competitors within a year of this spell's casting.

If cast repeatedly, this spell enables the propagation of a single species over an extensive region. It is said that Venominhandar and his mate employed this spell in conjunction with Venom's brambletangle to transform the Emerald Vale into the Tangled Vale.